Waterproof wrist-watch



Dec. 22, 1964 J. PARMENTIER WATERPROOF WRIST-WATCH 2 Sheets-Sheet 1 Filed April 4, 1963 Arry.

Dec. 22, 1964 J. PARMENTIER WATERPROOF WRIST-WATCH 2 Sheets-Sheet 2 Filed April 4, 1965 bwzwme United States Patent "ice iVRKST-WATQH Jean larmentier, 7 Rue Leonard de Vinei, Paris, France rats Apr. a, 1963, $el. N 270,597 Claims priority, application France, Apr. 1t 1962, HIV. $93,890 3 Claims. (Cl. 58-63) As underwater swimming acquires more and more adepts each year, it is necessary to furnish the users with equipment offering greater and greater security. Thus for underwater swimming the users must make use of perfectly water-tight watches and they more particularly favour wrist watches.

In a careful construction, water-tightness of the various cases is normally ensured, but it is also necessary to provide water-tightness of the winder stem. Furthermore a safety seal is obtained by a cap surrounding the head of the winder, which cap is screwed or compressed on a sealing washer, the stern of the winder possessing the sealing already effected by known means.

However in the course of a dive the safety cap is in danger of being unscrewed and the safety sealing of the watch is no longer ensured. This can occur the more easily as the winder and consequently its safety cap are placed towards the positions of three oclock or nine oclock on the dial, at projecting regions exposed to external contact, the attachments of the Wristlet normally being disposed towards the twelve and six oclock points.

Unscrewing involving the loss of the cap is rendered relatively easy by this fact, by repeated contact with external objects, such as catching upon seaweed strands or parts of the equipment of the diver.

The present invention permits of remedying these drawbacks. The Waterproof watch according to the invention is characterised by a safety piece articulated above a spindle, surounding the winder in one extreme position at least over a large part of its periphery, in such fashion as to protect it against contact with other objects, and freeing the said winder in the other extreme position. As has been said, the winder can be surrounded by a waterproof cap which is itself protected by the said safety piece, and one end of the band can be fixed on the safety piece at the position permitting its maintenance in the position protecting the winder, when the band is secured on the wrist.

As a variant, the safety piece carries a seating pressing in sealing fashion on the case of the watch, by reason of the interposition of a sealing joint, and a known system of levers permits of holding in place or disengaging the safety piece.

Various forms of embodiment of the invention are represented by way of examples of execution in the accompanyin g drawings.

FIGURE 1 is a front view of a wrist watch, the safety piece serving as attachment point to one part of the band.

FIGURE 2 is a partial side view of FIGURE 1.

FIGURE 3 is a diagrammatic view showing in section the system of articulation of the safety piece.

FIGURE 4 is a side view of FIGURE 3.

FIGURE 5 is a diagrammatic view of a variant of embodiment of the device according to the invention with the safety piece and the operating levers shown in section.

Referring to FIGURES 1 and 2, 1 represents the actual watch, 2 represents the cap which covers and surrounds the winder and is screwed on the case of the Watch with interposition of a sealing joint 3 and constitutes the safety seal mentioned at the outset.

It will be noted that the winder and its sealing cap are placed towards the zero point (12 oclock) of the dial,

3,162,007. Patented Dec. 22, 1964 On this part of the watch there is mounted by articulation at 4 a safety piece 5 which is cut away in such fashion as to envelop partially or even completely the safety cap 2.

The piece 5 further carries one of the ends of the band 6, so that when in place on the wrist the cap 2 is well protected from external contact by the piece 5.

in this form of embodiment the safety piece is articulated on the spindle 44; it can pivot to disengage the safety cap and, after unscrewing of the latter, expose the winder, in order to permit the winding or resetting of the watch. This implies that the watch is previously removed from the wrist.

The part of the case opposite to the safety piece 5 preferably possesses the same appearance as the latter, whether it is fast with the case of the watch or articulatedly mounted thereon.

FIGURES 3 and 4 are a simple variant of FIGURES 1 and 2. The safety piece 5 is articulated about the spindle 4a and can pivot to disengage the cap of the winder.

Another arrangement is represented in FIGURE 5 of the drawings.

In this embodiment the winder is again placed towards the Zero point (12 oclock) and the winder head is surrounded by a safety cap, but this cap, which comprises a sealing washer 8, i not screwed; it forms an integral part of the safety piece 5a. This piece, similar to the piece 5 but diiferent in its formation, is articulated at 9 about a spindle perpendicular to the plane of the figure and it is held in place by a known system of levers which permits of unlocking it by operation of the lever 14 (in the direction of the arrow); in FIGURE 5, the assembly is represented in the locked position.

The band in this case may or may not be secured to the safety piece 5a.

I claim:

1. A waterproof wrist watch having a band and having a setting and winding stem and a watertight hood around the stem, a safety piece articulated on the watch about a spindle, one end of the band of the watch being secured on the safety piece, the safety piece surrounding the watertight hood for at least a large part of the periphery of the watertight hood so as to protect the watertight hood against contact with other objects when the wrist watch is on the wrist of the wearer, the watertight hood being removable from the setting and winding stem in another position of the safety piece when the wrist watch is off the wrist of the wearer.

2. A wrist watch according to claim 1, in which the safety piece is carried by the Watertight hood and is adapted to be pressed in sealing fashion against the case of the watch when the watch is on the Wrist of the wearer, and lever means for releasably holding the safety piece in position to press the watertight hood into sealing engagement upon the case of the watch.

3. A wrist watch as claimed in claim 1, in which the watertight hood is separate from the safety piece and is separately removable from the setting and winding stem.

References Cited by the Examiner UNITED STATES PATENTS 1,802,080 4/31 Jandoc. 2,954,665 10/60 Panerai et al. 5890 FOREIGN PATENTS 202,906 2/39 Switzerland.

LEYLAND M. MARTIN, Primary Examiner.

JOSEPH P. STRIZAK, Examiner. 

1. A WATERPROOF WRIST WATCH HAVING A BAND AND HAVING A SETTING AND WINDING STEM AND A WATERTIGHT HOOD AROUND THE STEM, A SAFETY PIECE ARTICULATED ON THE WATCH ABOUT A SPINDLE, ONE END OF THE BAND OF THE WATCH BEING SECURED ON THE SAFETY PIECE, THE SAFETY PIECE SURROUNDING THE WATERTIGHT HOOD FOR AT LEAST A LARGE PART OF THE PERIPHERY OF THE WATERTIGHT HOOD SO AS TO PROTECT THE WATERTIGHT HOOD AGAINST CONTACT WITH OTHER OBJECTS WHEN THE WRIST WATCH IS ON THE WRIST OF THE WEARER, THE WATERTIGHT HOOD BEING REMOVABLE FROM THE SETTING AND WINDING STEM IN ANOTHER 